unity audio source fade in code example
Example: how to fade out music in unity
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public static class FadeAudioSource {
public static IEnumerator StartFade(AudioSource audioSource, float duration, float targetVolume)
{
float currentTime = 0;
float start = audioSource.volume;
while (currentTime < duration)
{
currentTime += Time.deltaTime;
audioSource.volume = Mathf.Lerp(start, targetVolume, currentTime / duration);
yield return null;
}
yield break;
}
}